Futures contracts of mentha oil fell over 1% on MCX as traders expect a rise in the mentha crop this year. The most-active May contract down 1.1% from the previous close. Farmers expect a better crop this year as they have used high-yielding variety of seeds. Harvest of mentha crop will start by mid-May. Mentha oil prices fell marginally in the spot markets. In the benchmark market of Sambhal, Uttar Pradesh, the commodity was sold down. Arrivals in Sambhal were at 30 drums, each drum carrying 180 kg.